$databaseName = $actionData["databaseName"]
$filename = $actionData["filename"]

$resourceLoaderType = ([System.Type]::GetType("Sitecore.Data.DataProviders.ReadOnly.Protobuf.IResourceLoader, Sitecore.Data.ResourceItems.ProtobufNet"))
$resourceLoader = [Sitecore.DependencyInjection.ServiceLocator]::ServiceProvider.GetService($resourceLoaderType)
$paths = [System.Collections.Generic.List[String]]@()
$paths.Add([Sitecore.MainUtil]::MapPath("/App_Data/items/$($databaseName)/$($filename)")) > $null
$paths.Add([Sitecore.MainUtil]::MapPath("/sitecore modules/items/$($databaseName)/$($filename)")) > $null
$defaultFieldValues = New-Object -TypeName 'System.Collections.Generic.Dictionary[[guid], [string]]'
$database = [Sitecore.Configuration.Factory]::GetDatabase($databaseName)
$connectionString = [System.Configuration.ConfigurationManager]::ConnectionStrings[$databaseName]
$callContext = New-Object -TypeName "Sitecore.Data.DataProviders.CallContext, Sitecore.Kernel" -ArgumentList @($database.DataManager, $database.DataProviders.Count)
$sqlDataProvider = New-Object -TypeName "Sitecore.Data.SqlServer.SqlServerDataProvider, Sitecore.Kernel" -ArgumentList @($connectionString)

foreach($item in $selectedData) {
    $itemDefinition = $sqlDataProvider.GetItemDefinition($item.ID, $callContext)
    if($itemDefinition) {
        $sqlDataProvider.DeleteItem($itemDefinition, $callContext) > $null
    }
}

$reportItems = [System.Collections.ArrayList]@()
$itemDataSet = $resourceLoader.LoadFromFiles($paths, "dat", $defaultFieldValues)
foreach($itemRecord in $itemDataSet.Definitions.Values) {
    $id = New-Object -TypeName "Sitecore.Data.ID, Sitecore.Kernel" -ArgumentList @($itemRecord.ID)
    $itemDefinition = $sqlDataProvider.GetItemDefinition($id, $callContext)
    if($itemDefinition) {
        $reportItems.Add((Get-Item -Path "$($databaseName):" -ID ([ID]::Parse($itemRecord.ID)))) > $null
    }
}

$reportItems | Update-ListView